方法1

cat /etc/SuSE-release

结果示例：
openSUSE 13.1 (x86_64)
VERSION = 13.1
CODENAME = Bottle

方法2

lsb_release -a

结果示例：
LSB Version: n/a
Distributor ID: openSUSE project
Description: openSUSE 13.1 (Bottle) (x86_64)
Release: 13.1
Codename: Bottle

方法3

uname -a

结果示例：
Linux iZ94odaalp3Z 3.11.10-17-default #1 SMP Mon Jun 16 15:28:13 UTC 2014 (fba7c1f) x86_64 x86_64 x86_64 GNU/Linux

方法4

cat /proc/version

结果示例：
Linux version 2.6.13-15-smp (geeko@buildhost) (gcc version 4.0.2 20050901 (prerelease) (SUSE Linux)) #1 SMP Tue Sep 13 14:56:15 UTC 2005

方法5

cat /etc/redhat-release